Sanitary spiral wound filtration cartridge
US8668828B2 · kind B2 · utility
3Cited by
16References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 26, 2008 |
| Grant date | Mar 11, 2014 |
| Priority date | — |
| Expiry date | Mar 31, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2323/42
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Sanitary elements and cartridges of high performance are described which utilize a thin surrounding tubular shell with an exterior textured surface. Through the use of an overwrap material of particular design and by wrapping an assemblage of sheets of semipermeable membrane material, permeate carrier material and feed spacer material using a high tension, a spirally wound crossflow filtration element is constructed which has a substantially cylindrical outer surface of closely controlled OD that smoothly fits within such shell and which resists telescoping as a result of its radial compression.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.